alleryഹെറോണിന്റെ സൂത്രവാക്യം അനുസരിച്ച്, 13, 14, 15 സെ.മീ എന്നീ വശങ്ങളുള്ള ഒരു ത്രികോണത്തിന്റെ വിസ്തീർണ്ണം എത്രയാണ്?
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
അർദ്ധ-ചുറ്റളവ് 21 ആണ്, അതിനാൽ വിസ്തീർണ്ണം 21 x 8 x 7 x 6 = 84 ചതുരശ്ര സെന്റീമീറ്ററുകളുടെ വർഗ്ഗമൂലമാണ്.
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